overhaul of newick parser
overhaul of newick parser

HLWeil/BioFSharp,HLWeil/BioFSharp,bvenn/BioFSharp,muehlhaus/BioFSharp,kMutagene/BioFSharp,CSBiology/BioFSharp,CSBiology/BioFSharp,HLWeil/BioFSharp,kMutagene/BioFSharp,bvenn/BioFSharp,HLWeil/BioFSharp,bvenn/BioFSharp